Drive MechanismGV 29�, GV 9000�, GV 9300�
Drive Mechanism
The drive mechanism is fitted with three motors providing:2. Cleaning
� precision drive of the headwheel
� direct drive of the capstan and the reelsPart Number
� drive of the cassette mechanism and tape threading/unthreadingMethyl alcohol .................................................... commonly available
system
Cleaning cloth (chamois or
The specified position numbers (Pos. �) are also used in the explodedsoft lintfree cloth)................................................ commonly available
views.
2.1 Cleaning the Tape Drum (Fig. 2.1)
1. Test Equipment / JigsHold the tape drum and clean it with a chamois or soft lintfree cloth
moistened with methyl alcohol. Wipe in the horizontal direction.
Part NumberWarning: Wiping in the vertical direction or applying excessive force
may cause damage to the video heads.
Nylon gloves ...................................................... commonly available
Slide gauge ........................................................ commonly available
Test cassette (HiFi).......................92754 010 1600
Tape drum
Torque meter cassette...................75988 047 1200
Torque meter 600gf-cm........................75981 311 3200
Video head
Torque screwdriver.................commonly available
Tape path surface
Screwdriver (slotted)............... commonly available
Fig. 2.1
Oil ......................................................... 75988 061 77002.2 Cleaning the Tape Path and Reel Driving System
Clean the pinch roller, capstan, tape guides, full erase head, R/P head,
the reels, pulley, belt drive (pulley flanged to capstan motor), belt, with
a chamois or soft lintfree cloth soaked with methyl alcohol.
Grease ...................... 75988 061 7800, 75988 061 7900
Note on the use of cleaners:
�Always use the specified cleaners. Other cleaners may cause
Note on the application of lubricants:damage to the parts to be cleaned.
�Always use the specified oil and grease. Other lubricants may cause
malfunctions in the mechanism.
�Be careful to keep the points/surfaces to be lubricated free of dust or
foreign bodies.
k 5 - 16GRUNDIG Service |